<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Title</title>
  <script src="../00.插件/babel.min.js"></script>
  <script src="../00.插件/react.development.js"></script>
  <script src="../00.插件/react-dom.development.js"></script>
</head>
<style>
    .outer{
        width: 300px;
        height: 300px;
        background-color: pink;
    }
</style>
<body>

<div id="app"></div>
<script type="text/babel">
  const vDom = (
    <div className="outer">
      <h1>你好！React！！！</h1>
    </div>
  )

  const root =  ReactDOM.createRoot(document.getElementById('app')).render(vDom)
</script>
</body>
</html>